Machine for straightening wire



- (No Model.)

c. LNGSTRO MACHINE FOR STRAIGHTENING WIRE. No. 293,212. Patented Feb. 12, 1884.

CARL ine'srnoir, or woncnsrnn, MASSACHUSETTS.

MACHINEFOR STRA'IGHTENING WIRE.

EPECIFICATION forming part of Letters Patent No. 293,212, dated February 12, 18814. i

Application filed May 21, 1883. (No model.)

To all whom it may coltcm-ni Be it known that I, CARL ilxesrnotr, a subject of the King of Sweden, residing at WVorcester, in the county of \Vorcester and State of Massachusetts, have invented certain new and useful Improvements in Machines for Strai gh tening WVire; and I declare the following to be a description of my'said invention sufficiently full, clear, and exact to enable others Skilled in the. art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

'In revolving wire-straightening machines of ordinary construction all of the revolving parts which bear against the wire give a frictional strain in one direction, and unless the wire is of sufficient size and strength to with viate the above objection and to provide a wire-straightening machine that can be used with practical efficiency and facility on wire of all sizes; also, to afford means in a wire straightening machine for longitudinally adtion when in use. .mechanism the nature of which is illustrated justing the dies and regulating the length and lateral extent to which the wire is bent or oii set within the straightening-dies; also, to providea machine with a mandrel or fiier open at one side, so that the wire can beintrodueed' and adjusted with ease and convenience; also, to construct the bearings in a manner that will insure their proper lubrication, and will prevent the throwingof oil by rapid revolu- These objects I attain by in the accompanying drawings and explained in the following description, the particular subject-matter claimed being hereinafter definitely specified. I

In the drawings, Figure l is a longitudinal sectional view of my improved machine for straightening wire. Fig. 2 is a top view of the same. Fig. 3 is a view of one end, and

Fig. 4 is a vertical transverse section through the central part'of the machine.

My improved machine consists ,of a revoluble flier-frame or mandrel, B,.having its journals O G mounted in boxes G G, that are supported on a suitable foot-plate or'bed, R, and provided with a pulley, L, for the drivingbelt, by which the mandrel can be revolved at the required speed.

The mandrel B is made with a connectingbar at one side only, the opposite side being formed open, and provided with suitable weights or projections, d d, for co unterbal ancing the bar and parts connected therewith when the mandrel is in rotary action.

The journals 0 G are formed hollow, and through them are arranged longitudinally adjustable guide-tubes m m, provided at their inner ends with dies or bushings a a, through which the wire 10 passes and from which the wire is strained laterally in the operation of straightening. The dies a a may be screwed into or otherwise secured in the ends of the tubes. The tubes m m are fitted to ruin loose in the journals of the mandrel, and are supported beyond the outer ends of the journals by bearing-brackets M M, that are secured by screwbolts 1* to the ends of the foot-frame, as illustrated. Set-screws N N are arranged in the brackets M M, for confining the tubes at m in position, and gibs .or bearing-plates w a" are in thepresent instance arranged between the set-screws and tubes, to protect their surfaces and to give a uniform bearing. Set-screws e e are also arranged in the mandrel, by means of which the tubes can be confined to revolve with the mandrel when desired, the set-screws .N N at such times being loosened, to permit the tubes to revolve within the brackets M.

In the connected side of the mandrel B is arranged an adjustable stud or bar, D, at the receive them, said bars being severally air-- thereof while running.

be used in connectionwith the mandrel B, the length of the mandrel being made sufficient to ranged at suitable intervals of space, and Bach supported and adjusted substantially similar to the one herein illustrated. V

The guide-tubes m m being longitudinally adjustable, the guides or dies a (6 can be set at greater or less distance apart, and the adjustment of the bar 1) carries the die or guidingeye f to greater or less distance from the axial line of the mandrel. Consequently, the lateral bend or angular strain given to the wire as it passes through the machine can be regulated both as to length and degree of offset, so as to correspond to the requirements of any and all kinds and'sizes of wire, or so as to give the faces of the journals 0 C are made of greater diameter than the neck portions K K, or

parts where they enter the boxes; and the boxes G G are made longer than the journals, and are provided with annular lips s s, of smaller diameter than the bearingsurface, which lips s s, extend inward at the ends of the journal-bearing in the manner illustrated, and give endsupport or bearing for the mandrel, thus preventing longitudinal vibration The enlargement of the'journal at the central part also causes the oil to be drawn up into the center part of the boxes, as it tends to flow toward the parts at greatest distance from theaxis of revolution. This also prevents the throwing of oil from the ends of the boxes G G by the rapid rotation of the mandrel.

By making the guides a a so that they stand stationary while the guide f rotates, as described, the friction of the guides at a, actingon the wire, tends to roll or twist it in one direction, while the friction of the guide f tends to roll or twist it in an opposite direction;

hence the friction at the different points is counteractive and prevents the twisting of the wire as it is run through the machine. Small sizes of wire can therefore be straightened with facility and practical success. The straightener can be used in connection with any kind of wire-working or wire-cutting machinery or alone upon the ordinary drawing-table, the wire being pulled or fed through thestraightening apparatus by any suitable means.

By making the inandrel open at one side the wire can be entered and the guiding-dies adjusted with much greater facility and convenience than if both sides of the mandrel were connected by bars, as in the ordinary machines.

What I claim as of my invention, and desire to secure by Letters Patent, is-

1. A rotary wire-straightener having wireguiding dies, which are adapted for adjustment toward or from each other in a direction longitudinal with the axis of rotation, for the purpose set forth.

2. In a rotary wirestraightener, the end guides or wire-holders, aand a, adjustable toward and from each other, substantially as set forth. 4 I

3. In a rotary wire-straightener, the end ary or rotative action at will, substantially as set forth.

6. In a rotary wire-straightener, the combination of longitudinally adjustable end dies or wireguides, a and a, and a radiallyadjustable wire-guide, f, with a revolving mandrel or flier, for the purposes set forth.

7. In a rotary wire-straightener, the revoluble mandrel B, formed open at one side, and provided with counter-weights or projections (Z d, substantially as forth.

8. I11 a revolving wire straightener, the combination, substantially as described, of a revolving mandrel or flier having hollow and for the purpose set journals, the end dies or wire-guides fixed in longitudinally adjustable guide supporting tubes extending through the mandrel-jour-- nals, the tube-supporting brackets attached to the bed-frame, and means for retaining said tubes and guides A forth.

' 9. [n a rotary wire-straightener, the com bination, with the revoluble mandrel B, provided with journals 0 O, the bearing portion of which is of greater diameter than the neck portions K, of the journal-boxes G G for the mandrel journals, provided with inwardlyprojeeting lips or collars s and s that embrace the journals at the ends of their bearing-surfaces, substantially as and for the purposes set forth.

10. In a rotary wire-straightener, the combination, with the revoluble flier or mandrel, of the'screwstud or bar D, provided with a guide hole or loop, f, for the purpose set forth.

11. Ina rotary wire-straightener, the combination,'with the wire tubes m and m and bed-plate B, of the tube-supporting bearings -M and M, set-serews N and N, and the gibkeys as x, as and for the purpose set forth.

\Vitncss my hand this 16th day of May, A. D. 1883. o

CARL ANGSTROM.

Vitnesses:

CHAS-,H. BURLEIGH, EDw. R. GATES.

at adjusted positions, as set 

